Surface modification of electrospun silk/AMOX/PVA nanofibers by dielectric barrier discharge plasma: physiochemical prop
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ORIGINAL RESEARCH
Surface modification of electrospun silk/AMOX/PVA nanofibers by dielectric barrier discharge plasma: physiochemical properties, drug delivery and in‑vitro biocompatibility Namita Ojah1 · Rajiv Borah2 · Gazi Ameen Ahmed1 · Manabendra Mandal3 · Arup Jyoti Choudhury1 Received: 27 June 2020 / Accepted: 27 October 2020 / Published online: 18 November 2020 © Islamic Azad University 2020
Abstract The naturally obtained protein Bombyxmori silk is a biocompatible polymer with excellent mechanical properties and have the potential in controlled drug delivery applications. In this work, we have demonstrated dielectric barrier discharge (DBD) oxygen (O2) plasma surface modified electrospun Bombyxmori silk/Amoxicillin hydrochloride trihydrate (AMOX)/polyvinyl alcohol (PVA) nanofibers for drug release applications with controlled plasma treatment duration (1–10 min). The findings indicate that plasma treated electrospun nanofibers for 1–3 min exhibited significant enhancement in tensile strength, Young’s modulus, wettability and surface energy. The plasma treated electrospun nanofibers for 1–5 min showed remarkable increase in AMOX released rate, whereas the electrospun nanofibers treated with plasma irradiation beyond 5 min showed only marginal increase. Moreover, the plasma treated nanofibers also exhibited good antibacterial activity against both E. coli (gram negative) and S. aureus (gram positive) bacteria. The untreated and the plasma treated silk/AMOX/PVA electrospun nanofibers for 1–3 min showed enhanced viability of primary adipose derived mesenchymal stem cells (ADMSCs) growth on them and much less hemolysis activity (
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